1045143540 has 144 divisors (see below), whose sum is σ = 3782520000. Its totient is φ = 238883904.

The previous prime is 1045143511. The next prime is 1045143569. The reversal of 1045143540 is 453415401.

It is a happy number.

1045143540 is a `hidden beast` number, since 104 + 5 + 14 + 3 + 540 = 666.

It is an interprime number because it is at equal distance from previous prime (1045143511) and next prime (1045143569).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6711 + ... + 46209.

It is an arithmetic number, because the mean of its divisors is an integer number (26267500).

Almost surely, 2^1045143540 is an apocalyptic number.

1045143540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1045143540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1891260000).

1045143540 is an abundant number, since it is smaller than the sum of its proper divisors (2737376460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1045143540 is a wasteful number, since it uses less digits than its factorization.

1045143540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39531 (or 39516 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1045143540 is about 32328.6798369497. The cubic root of 1045143540 is about 1014.8269225298.

Adding to 1045143540 its reverse (453415401), we get a palindrome (1498558941).

The spelling of 1045143540 in words is "one billion, forty-five million, one hundred forty-three thousand, five hundred forty".